Aachen's climate is characterized by mild winters, with temperatures often hovering around freezing point, and occasional cold snaps. Spring brings a gradual warming trend, with temperatures rising steadily from March onwards. Summer is warm but not hot, with average highs ranging from 15 to 17 degrees Celsius, while autumn sees a return to cooler temperatures, with some chilly days still lingering in October. Winters are generally the coolest season, with January and December being the coldest months, but even then, temperatures rarely drop below -10C. Overall, Aachen's climate is relatively mild and pleasant year-round, with moderate temperature fluctuations between seasons.